Classify a polygon as concave, convex, regular or irregular ex 1

The video tutorial explains how to classify polygons as concave or convex by extending their sides. It further distinguishes between regular and irregular polygons by examining the equality of their sides and angles. The tutorial concludes with a summary of these classification methods.

How can you determine if a polygon is convex?

• By counting the number of sides

• By checking if all angles are equal

• By extending the sides and checking for intersections inside the polygon

• By measuring the length of all sides

What is the first step in identifying a polygon as concave or convex?

• Extending the sides

• Counting the number of sides

• Measuring the angles

• Checking for equal side lengths

What characteristic defines a regular polygon?

• All sides are of different lengths

• All sides and angles are equal

• All angles are right angles

• It has more than four sides

If a polygon has two 90-degree angles and the rest are not, what type of polygon is it?

• Concave

• Regular

• Irregular

• Convex

Which of the following is NOT a characteristic of a regular polygon?

• All sides are equal

• It is always convex

• It can be concave

• All angles are equal